东营凹陷史家地区沙三段低渗透储层微观特征  

RESERVOIR MICROSCOPIC CHARACTERISTICS OF MEMBER Ⅲ AT SHAHEJIE FORMATION IN SHIJIA AREA OF DONGYING DEPRESSION/

作　　者：马明福[1] 戴启德[1] 

机构地区：[1]石油大学石油资源科学系

出　　处：《石油大学学报（自然科学版）》1998年第5期34-36,共3页Journal of the University of Petroleum,China(Edition of Natural Science)

基　　金：中国石油天然气总公司资助项目

摘　　要：对东营凹陷史家地区沙三段低渗透储层的岩石成分、物性、成岩作用、孔隙结构以及粘土矿物的潜在敏感性特征进行了研究，揭示了储层的微观非均质性。研究表明，储层成岩作用强，成岩阶段为晚成岩Ａ期；储层孔隙类型以次生为主，孔隙结构以大孔较细喉为主。储层微观非均质性强，粘土含量高，并多以晶体较大的自生矿物形式充填在孔隙中，在油田开发中应注意潜在的水敏性和速敏性。Dongying depression is located in the eastsouth of Jiyang basin. Member Ⅲ of Shahejie formation is one of the major reservoirs in Shijia area of Dongying depression. The reservoir mainly consists of sandstones. Reservoir microheterogeneity was recognized by analysis on the content of the rocks, petrophysical property, diagenesis, pore structure and potential sensitivity of clay minerals. The diagenesis is good, and type of reservoir porous structure is mainly secondary pore space in shijia ares. The reservoir is of high microheterogeneity and clay content.

关 键 词：低渗透储层 微观特征 油气藏 

分 类 号：P618.130.2[天文地球—矿床学]